Android fail

[fatalfeel]

1. sllin built-in module and boot message
   [ 1.527834] sllin: serial line LIN interface driver
   [ 1.528527] sllin: 10 dynamic interface channels.
   [ 1.529148] sllin: Break is generated manually with tiny sleep.

2. root@matrix_io:/ # sllin_attach -w /dev/ttymxc2
   [ 539.350802] sllin: sllin_open() invoked
   [ 539.351382] sllin: Configured as MASTER
   [ 539.351887] sllin: Baudrate set to 19200
   attached tty /dev/ttymxc2 to netdevice sllin0
   Press any key to detach /dev/ttymxc2 ...

root@matrix_io:/ # ip link set sllin0 up
Cannot find device "sllin0" --->fail here

[fatalfeel]

success use and need mark some lines and let it compile pass
https://github.com/karelzak/util-linux/blob/master/sys-utils/ldattach.c

in Android.mk
include $(CLEAR_VARS)

LOCAL_SRC_FILES := ldattach.c
LOCAL_MODULE := ldattach
LOCAL_MODULE_TAGS := optional
LOCAL_C_INCLUDES := $(LOCAL_PATH)/include/
LOCAL_CFLAGS := $(PRIVATE_LOCAL_CFLAGS) -DHAVE_USLEEP

include $(BUILD_EXECUTABLE)

[fatalfeel]

http://www.mediafire.com/file/q8doq6bznvt0zt7/canutils.tar.gz
put it in myandroid/external to build